CN104634700A - Concrete fluidity testing device - Google Patents
Concrete fluidity testing device Download PDFInfo
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- CN104634700A CN104634700A CN201510091108.0A CN201510091108A CN104634700A CN 104634700 A CN104634700 A CN 104634700A CN 201510091108 A CN201510091108 A CN 201510091108A CN 104634700 A CN104634700 A CN 104634700A
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Abstract
The invention relates to a concrete fluidity testing device which comprises a chassis, a slump cylinder positioning mechanism, a slump cylinder and a measurement mechanism, wherein the chassis is used for bearing the slump cylinder and a concrete mixture sample and fixing the slump cylinder positioning mechanism; the slump cylinder positioning mechanism consists of a fixed frame, a movable frame and a handle and is used for fixing and lifting the slump cylinder; the measurement mechanism is used for measuring the slump and the expansion degree of the concrete mixture. The concrete fluidity testing device is capable of accurately testing the fluidity evaluation indexes such as slump, slump extension time (T50), and slump expansion degree of fresh mixed concrete with fluidity requirement, and is labor-saving and convenient to operate; furthermore, the device has the characteristics of being reasonable in design, simple in structure, accurate in test, environmentally friendly and efficient, and is easy to popularize and implement.
Description
Technical field
The present invention relates to a kind of concrete flowability proving installation, belong to construction work Test And Check Technology field.
Background technology
Concrete is the building materials that modern construction engineering consumption is maximum, purposes is the widest, the workability of concrete mix (or claiming workability) is the important performance ensureing concrete batching system constructability operation (mix and stir, transport, water, tamping) and can obtain the closely knit concrete structure of uniform quality, what reflect is the performance that concrete mix is easy to flow under deadweight or the construction machinery effect of vibrating, and depends on the denseness of mix.Workability is the key property that must control in concrete preparation process, and comprises mobility, cohesiveness and water-retaining property three indexs (also should comprise plasticity, easily modified, fillibility, pumpability and stability etc. to high performance concrete).Because cohesiveness and water-retaining property are difficult to directly test, only test the mobility of concrete mix in practice, be aided with the observation to its cohesiveness and water-retaining property, then according to mensuration and its workability of observations comprehensive evaluation.
For testing the mobility of concrete mix, once developed multiple device in the world, as the stream latitude of emulsion testing table, Kai Li (Kelly) ball indentation test instrument, Nasa K-probe etc. of slump cylinder, stream latitude of emulsion test instrument, remoldability test instrument, Germany.Slump cylinder due to device simple, and index is clear and definite, therefore extensively adopts for countries in the world always.
Existing slump cylinder is made up of slump cylindrical shell, pedal and handle, generally has standard slump cylinder and strengthens slump cylinder two kinds of sizes.Standard slump cylinder is applicable to the fluidity testing that maximum aggregate size is not more than the concrete mix of 50mm, and strengthens the fluidity testing that slump cylinder is applicable to the concrete mix of 50mm ~ 80mm.The basal diameter of standard slump cylinder is 200mm, and end face diameter is 100mm, is highly 300mm; Strengthen slump cylinder and be of a size of basal diameter 300mm, end face diameter 150mm, height 450mm.
Inconvenience is there is when adopting existing slump cylinder to carry out the test of concrete mix mobility.The first at least two people just must can complete test job, and the pedal that people's bi-pedal lives slump cylinder makes it be fixed on test base plate, and another people feeds.It two is that the personnel of foot-operated slump cylinder must use both hands and feet, during the filling large concrete mix of fluidity, as careless slightly, cement slurry will to be trickled down on both feet and trousers of making dirty, sometimes also may to damage operating personnel with instrument whens filling with substance such as spades, and in whole operating process, slump cylinder must be made firmly motionless on base plate, as trampled loosely, having mixture and going out from cylinder underflow.It three is often be difficult to ensure verticality in the process mentioning slump cylinder, makes concrete mix sample receive transverse direction and twisting force when hanging and produce inclination, brings error to test findings; And usually need a ruler, a slump cylinder and a mark post when testing the slump, the levelness that the verticality of ruler and mark post are placed all will affect the precision of test result, and test result is also subject to operating personnel on the impact of slump cylinder pulling speed and subjective judgement error simultaneously.Visible, although existing concrete slump method of testing device is simple, operation is inconvenient, testing efficiency is low and unhygienic, measuring accuracy is difficult to ensure.
Summary of the invention
The present invention is directed to deficiency and defect that prior art exists, provide a kind of reasonable in design, structure is simple, easy to operate and precisely can test the proving installation of concrete mix mobility.
For achieving the above object, the technical solution adopted in the present invention is: a kind of concrete flowability proving installation, comprises chassis, slump cylinder detent mechanism, slump cylinder and measuring mechanism.Slump cylinder detent mechanism, primarily of circular enlargement panel and annular ledge composition, for support slump cylinder and concrete mix sample, is fixed in described chassis.Described slump cylinder detent mechanism is made up of fixed frame, movable frame and handle, for fixing and lifting slump cylinder.Described slump cylinder is made up of slump cylindrical shell, handle and dop, for holding concrete mix sample.The dip stick that measuring mechanism is formed by compressor arm and the load bar of slump cylinder detent mechanism forms, and completes the measurement to concrete mix slump and divergence.Described slump cylinder detent mechanism carries out rolling by the bearing shape structure that fixed frame and chassis are formed and is connected, and slump cylinder detent mechanism is vertically to having stable structure, and level is to the rotation can carrying out 360 degree around chassis.Described movable frame and handle are slidably connected, and mention or depress handle to drive movable frame to move up and down along fixed frame.Described slump cylinder is fixed on movable frame by handle and chuck, mentioning handle can make slump cylinder be fixed on the expansion face plate center on chassis to load mixture, pressure handle drives slump cylinder at the uniform velocity to promote by movable frame and concrete mix sample is evenly flowed out, forms the expansion that collapses or collapse.Described measuring mechanism comprises load bar and compressor arm, and load bar and compressor arm are marked with scale mark and form respectively slump dip stick and divergence dip stick.Move up and down relative to the main cross bar of fixed frame the slump can measuring concrete mix sample by load bar slump dip stick, the slump flow test of concrete mix sample can be measured by the rotation of compressor arm divergence dip stick around chassis.
In said structure, described fixed frame comprises main cross bar, left and right pole and rotating disk.Pole upper end, left and right is fixed on the two ends, left and right of main cross bar, and lower end symmetry is fixed on the outside of round turntable.Described movable frame comprises time cross bar, left and right elevating lever, chuck, compressor arm and left and right sleeve.Described chuck both sides are fixedly connected with compressor arm, and compressor arm opposite side is fixedly connected with sleeve, and sleeve set is peripheral left and right pole, and two sleeves form sliding pair with suit left and right pole within it respectively.Elevating lever lower end, described left and right is separately fixed at the upper surface of two compressor arms in left and right, upper end is fixed on the two ends, left and right of time cross bar, secondary cross bar central upper portion is fixedly connected with load bar, the slide-and-guide hole that load bar upper end is offered through main cross bar center is also connected in the middle part of handle, and described slide-and-guide hole and described load bar form sliding pair.Main cross bar upper surface one end of described fixed frame is provided with the ear that is fixedly hinged, described main cross bar by described hinged ear and handle one end hinged.
Preferably, described load bar upper end is provided with U-type groove, sliding tray is offered along its length in the middle part of described handle, can be sleeved in the U-type groove of load bar end in the middle part of the handle being provided with sliding tray, in the middle part of handle, sliding tray is connected by rotating shaft with the U-type groove of load bar upper end, and the sliding tray of described handle and described rotating shaft form sliding pair.
In said structure, described load bar is provided with slump scale mark, and load bar and movable frame define slump measuring mechanism.Described compressor arm is respectively equipped with divergence scale mark and measures subscript with the divergence can slided on compressor arm, divergence scale mark, divergence measure subscript and two compressor arms form Control Measures for Concrete Slump divergence measuring mechanism.
In said structure, described load bar side offers locking slot, columned load bar locking pin is equipped with by jacket casing in the side corresponding to load bar locking slot, upper end, slide-and-guide hole at main cross bar center, described load bar locking pin is slightly thick near the termination of load bar locking slot, spring is provided with between the sleeve of described termination and fixing load bar locking pin, the load bar locking bearing pin of sleeve opposite side is provided with and turns to dop and draw ring, described main cross bar is also provided with the dop turning to dop to match with locking pin, pull draw ring and make load bar locking pin two supporting dops can be made to unclamp along axle 90-degree rotation, by the locking slot of the termination of load bar locking pin press-in load bar under the tension force of spring, thus make load bar be fixed on main cross bar, the location to slump cylinder can be realized thus.
In said structure, the expansion panel on described chassis is a plectane, edge is provided with annular ledge below, described annular ledge lateral surface offers the inner ring that circular groove forms bearing shape structure, the annular rotary table madial wall of described fixed frame is also provided with the outer ring that circular groove forms bearing shape structure, the groove that described bearing and rotating disk are offered defines the raceway of bearing shape structure, in raceway, the several ball of Matching installation forms the rolling body of bearing shape structure, be provided with the retainer separated by ball in raceway, described rotating disk can rotate around bearing and form revolute pair.Described expansion panel upper surface is provided with the divergence tag line of different-diameter, is provided with stiffening rib inside bearing.
In said structure, the funnel-form feeding hopper that described slump cylinder comprises slump cylindrical shell and is communicated with slump cylinder lumen, described feeding hopper is located at slump cylindrical shell place suitable for reading; Described slump cylinder body outer wall is fixed with two handles and chuck vertically arranged, two chucks are positioned at immediately below two handles, two handles and chuck symmetrical about slump cylinder body axis, described slump cylindrical shell is sleeved in chuck, and is fixed on compressor arm by chuck, handle and locking pin; Inside described chuck, symmetry offers two for the draw-in groove through handle.
Alternatively, described slump cylinder detent mechanism is made up of handle, link, sliding tray, rotating shaft, load bar locking pin, load bar sleeve, load bar, slump cylinder locking pin, slump cylinder chuck, slump cylinder compressor arm, slump cylinder compressor arm sleeve, loading arm, loading arm sleeve, head tree, trip bolt and expansion board etc.Described head tree lower end is vertically fixed on the edge, side of expansion board, described compressor arm is slidably connected by compressor arm sleeve and head tree, described compressor arm sleeve side is provided with compressor arm trip bolt, can described compressor arm be fixed on head tree, described compressor arm is fixedly connected with load bar with slump cylinder chuck respectively, described load bar is slidably connected by load bar sleeve and loading arm, described loading arm is slidably connected by loading arm sleeve and described head tree, described load bar upper end is slidably connected by rotating shaft and sliding tray and handle, described handle is slidably connected by link and described head tree, described link can carry out the rotation in horizontal 360-degree direction around described head tree column cap.Upper and lower, described load bar side is provided with two locking slots, and the height of two locking slots corresponds respectively to locking pin and just can clamp slump cylinder and the position being totally released slump cylinder.Described loading arm sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension.Rise or fall handle and slump cylindrical shell can be fixed or throw off expansion board, realize the test operation of charging and slump flow.
In said structure, described chassis is only made up of expansion board, and described expansion board is an entirety by head tree and slump cylinder detent mechanism consolidation, and the two can not have relatively rotating of horizontal direction.
Alternatively, described measuring mechanism is independent from slump cylinder detent mechanism, measuring mechanism by gage beam sleeve, gage beam, measurement pole cap, sounding rod trip bolt, sounding rod sleeve, slump sounding rod, divergence measures rider and divergence dip stick is formed.Slump sounding rod and divergence dip stick are fixedly connected as an entirety, described slump sounding rod is slidably connected by sounding rod sleeve and gage beam, described slump sounding rod upper end is provided with measurement pole cap, measures pole cap and can prevent the slump sounding rod from deviating from from described sounding rod sleeve.Described sounding rod sleeve is provided with sounding rod trip bolt, is convenient to test the slump.Described divergence dip stick is provided with divergence and measures rider, is convenient to test divergence.Gage beam passes through gage beam sleeve set on head tree outside surface, described gage beam sleeve upper/lower terminal is respectively equipped with the spacer pin limiting it and move up and down along head tree, this gage beam sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension.
The invention has the beneficial effects as follows:
1, in concrete flowability proving installation of the present invention, the setting of slump cylinder chuck can make slump cylinder be fastened on chassis, the drawback of removing manual operation from and bringing simultaneously;
2, the divergence dip stick of measuring mechanism of the present invention can do the rotation of 360 degree around center chassis axis, thus conveniently records the expansion angle value of concrete mix at different directions;
3, slump cylinder detent mechanism of the present invention is beneficial to vertically at the uniform velocity promoting of slump cylinder, guarantees freely hanging of concrete mix sample, the error that the interference avoiding artificial side force causes test findings, improves the degree of accuracy measured; And owing to removing the operation of artificial fixing slump cylinder from, only need a people conveniently to complete and test and obtain accurate test findings, overcoming in prior art can not the problem of people's complete independently measurement.
4, to sum up, concrete flowability proving installation of the present invention accurately can test the fresh concrete slump, the slump expansion time (T that mobility requires
50), the fluidity evaluating index such as slump flow test, and save manpower, easy to operate, meanwhile, have reasonable in design, structure simple, the feature of accurate testing, environment-friendly high-efficiency, is easier to promotion and implementation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of A-A in Fig. 1;
Fig. 3 is the divergence tag line of expansion panel of the present invention;
Fig. 4 is the structural representation of the embodiment of the present invention 2.
Embodiment
Below with reference to the accompanying drawings and embodiment the present invention is described in further details, but the invention is not restricted to the following stated embodiment.
Embodiment one: see Fig. 1,2 and Fig. 3, the meaning representated by number in the figure is: sliding tray 1, rotating shaft 2, load bar 3, main cross bar 4, slump scale mark 5, secondary cross bar 6, left elevating lever 7, left branching rod 8, divergence measures subscript 9, sleeve 11, and collapse expansion panel 12, ball 13, rotating disk 14, bearing 15, handle 16, load bar locking slot 17, load bar locking pin 18, right elevating lever 19, right pole 20, feeding hopper 21, handle 22, chuck 23, slump cylinder locking pin 24, compressor arm 25, chuck 26, slump cylindrical shell 27.
Subscript 9, sleeve 11, rotating disk 14 is measured by sliding tray 1, rotating shaft 2, main cross bar 4, secondary cross bar 6, left elevating lever 7, left branching rod 8, divergence, handle 16, load bar locking pin 18, right elevating lever 19, right pole 20, chuck 23, slump cylinder locking pin 24 and slump cylinder compressor arm 25 constitute slump cylinder detent mechanism, expand on panel 12 and the test realized the slump and slump flow for being fixed on by slump cylindrical shell 27.Left branching rod 8 and right pole 20 lower end are 90 degree of symmetrical both sides being bonded to rotating disk 14, and described left branching rod and right pole are arranged symmetrically with about turntable shaft.Described left branching rod and right pole upper end are cemented in the two ends, left and right of main cross bar 4 respectively, and described rotating disk, left branching rod, right pole and main cross bar define the fixed frame of slump cylinder detent mechanism, provide counter-force for during the slump cylinder of movable frame location.Load bar 3, secondary cross bar 6, left elevating lever 7, right elevating lever 19, sleeve 11, chuck 23, slump cylinder locking pin 24, compressor arm 25 etc. constitute the movable frame of slump cylinder detent mechanism, the support compression that can provide by fixed frame also fixes slump cylindrical shell 27 on slump expansion panel 12, at the uniform velocity can be promoted by slump cylindrical shell under the drive of handle 16 simultaneously.Described compressor arm two ends are provided with the sleeve 11 of Vertical dimension, and left and right sides sleeve 11 is enclosed within left branching rod 8 and right pole 20 respectively, levelness when described sleeve can ensure that slump cylinder compressor arm 25 is elevated.Described compressor arm is fixedly connected with right elevating lever 19 with left elevating lever 7, described left and right elevating lever upper end is fixedly connected with time cross bar 6, described time cross bar is fixedly connected with load bar lower end, the slide-and-guide hole that described load bar is offered through main cross bar centre position, block the sliding tray 1 in the middle part of handle 16 by the U-type groove of its upper end, the sliding tray in the middle part of described handle is offered along its length.The U-type groove of described load bar is connected by the rotating shaft 2 be fixed in U-type groove with the sliding tray in the middle part of handle, described sliding tray and described rotating shaft form sliding pair, the length of sliding tray does not produce moment of flexure when can ensure that load bar does vertical up-or-down movement, the sliding tray (can adopt slotted hole) of described rotating shaft and described handle adopts clearance fit, ensures load bar is not applied by described handle Moment Influence when doing vertical up-or-down movement further.Described load bar is provided with slump scale mark 5, forms slump dip stick, can measure the slump of concrete mix with the relative displacement of described main cross bar.Described load bar side is provided with locking slot 17, and described main cross bar is provided with load bar locking pin 18 near load bar locking slot side, for load bar is fixed on main cross bar.Described load bar locking pin 18 is spring locking pin, is convenient to unclamp and fixing load bar.Chuck 23 symmetria bilateralis is fixedly connected with compressor arm 25, and inside described chuck, symmetry offers two draw-in grooves, for passing slump cylinder handle 22; Described slump cylindrical shell 27 is sleeved in chuck, and is fixed in described chuck by chuck 26, handle 22 and locking pin 24, and wherein slump cylinder locking pin 24 is also spring locking pin.Described compressor arm is provided with divergence and measures subscript 9 and divergence scale mark 10, forms slump dip stick, for measuring slump flow test or the J ring divergence of concrete mix.Described main cross bar upper surface one end is fixedly hinged ear, this main cross bar 4 by described hinged ear and handle 16 one end hinged.Described handle drives load bar and moving up and down of movable frame can realize fixing or mentioning the operation of slump cylindrical shell 27.
Chassis is expanded panel 12, ball 13, rotating disk 14 and is located at the annular ledge 15 expanding panel lower surface edge and forms, for support slump cylinder and concrete mix by collapsing.The expansion panel 12 that collapses is fixedly connected as an entirety with annular ledge 15, described bearing is annular, madial wall establishes groove, described rotating disk is also annular, lateral wall establishes groove, the groove of described bearing and rotating disk has identical circular arc degree, and interior configuration ball 13 forms bearing shape structure and carries out rolling connection.Described rotating disk is fixedly connected with described left and right pole, and this rotating disk can drive slump cylinder detent mechanism to do freely rotating of horizontal 360-degree direction around described slump expansion panel, is convenient to the slump flow test testing concrete mix.Described slump expanding surface panel edges is provided with the bead that drips, and is convenient to rinse plate face with water and do not pollute the groove of ball and bearing and rotating disk.
Slump cylinder is constituted by feeding hopper 21, handle 22, chuck 26 and slump cylindrical shell 27.Described feeding hopper is funnel-form, and namely feeding mouth is greater than the basal diameter of slump cylinder of the present invention, the drippage of the concrete mix preventing mobility large.Described handle 22 is vertically fixed on slump cylindrical shell 27 outer wall, is convenient to penetrate in the groove of slump cylinder chuck 23.Described chuck 26 is for positioning slump cylindrical shell and being fixed in slump cylinder chuck 23.
For ease of testing the expansion angle value of concrete mix, the described expansion panel surface that collapses can be carved the tag line of Φ 500, Φ 600, Φ 700, Φ 800, Φ 900.
Embodiment two: see Fig. 4, meaning representated by number in the figure is: handle 1, link 2, sliding tray 3, bearing rotating shaft 4, load bar locking pin 5, load bar sleeve 6, load bar 7, feeding hopper 8, handle 9, slump cylinder locking pin 10, slump cylinder chuck 11, slump cylinder chuck 12, slump cylindrical shell 13, slump cylinder compressor arm 14, slump cylinder compressor arm sleeve 15, loading arm 16, loading arm sleeve 17, gage beam sleeve 18, gage beam 19, measure pole cap 20, sounding rod trip bolt 21, sounding rod sleeve 22, head tree 23, slump sounding rod 24, slump cylinder compressor arm trip bolt 25, divergence measures rider 26, divergence dip stick 27, expansion board 28.
Embodiment two is the simplification to embodiment one, its difference is: the concrete flowability proving installation of the present embodiment is by handle 1, link 2, sliding tray 3, bearing rotating shaft 4, load bar locking pin 5, load bar sleeve 6, load bar 7, feeding hopper 8, handle 9, slump cylinder locking pin 10, slump cylinder chuck 11, slump cylinder chuck 12, slump cylindrical shell 13, slump cylinder compressor arm 14, slump cylinder compressor arm sleeve 15, loading arm 16, loading arm sleeve 17, gage beam sleeve 18, gage beam 19, measure pole cap 20, sounding rod trip bolt 21, sounding rod sleeve 22, head tree 23, slump sounding rod 24, slump cylinder compressor arm trip bolt 25, divergence measures rider 26, divergence dip stick 27 and expansion board 28 form.Be different from embodiment one, the slump cylinder detent mechanism of the present embodiment only retains a part, and chassis structure also simplifies, and only have an expansion board 28 to form, mobility measuring mechanism slightly changes, slump cylinder structure and embodiment one completely the same.
The slump cylinder detent mechanism of the present embodiment is made up of handle 1, link 2, sliding tray 3, rotating shaft 4, load bar locking pin 5, load bar sleeve 6, load bar 7, slump cylinder locking pin 10, slump cylinder chuck 12, slump cylinder compressor arm 14, slump cylinder compressor arm sleeve 15, loading arm 16, loading arm sleeve 17, head tree 23, trip bolt 25 and expansion board 28 etc.Head tree 23 lower end is vertically fixed on the edge, side of expansion board 28, compressor arm 14 is slidably connected by compressor arm sleeve 15 and head tree 23, described compressor arm sleeve side is provided with compressor arm trip bolt 25, can described compressor arm be fixed on described head tree, described compressor arm is fixedly connected with load bar 7 with slump cylinder chuck 12 respectively, described load bar is slidably connected by load bar sleeve 6 and loading arm 16, described loading arm is slidably connected by loading arm sleeve 17 and described head tree, described load bar upper end is slidably connected with handle 1 by rotating shaft 4 and sliding tray 3, described handle is slidably connected by link 2 and described head tree, described link can carry out the rotation in horizontal 360-degree direction around described head tree column cap.Upper and lower, described load bar side is provided with two locking slots, and the height of two locking slots corresponds respectively to locking pin 10 and just can clamp slump cylinder and the position being totally released slump cylinder.Described loading arm sleeve can only do the rotation in level 360 ° of directions, can not do the motion of Vertical dimension.Rise or fall handle 1 and by fixing for slump cylindrical shell 13 or disengagement expansion board 28, the test operation of charging and slump flow can be realized.
The chassis of the present embodiment is only made up of expansion board 28.Its feature being different from embodiment one is described expansion board is an entirety by head tree 23 and slump cylinder detent mechanism consolidation, and the two can not have relatively rotating of horizontal direction.
The slump cylinder of the present embodiment is made up of feeding hopper 8, handle 9, slump cylinder chuck 11 and slump cylindrical shell 13.It is identical with embodiment one with principle of work with the syndeton of chuck.
The feature that the present embodiment is different from embodiment one is that measuring mechanism is independent from slump cylinder detent mechanism, measuring mechanism by gage beam sleeve 18, gage beam 19, measure pole cap 20, sounding rod trip bolt 21, sounding rod sleeve 22, slump sounding rod 24, divergence measures rider 26 and divergence dip stick 27 is formed.Slump sounding rod 24 and divergence dip stick 27 are fixedly connected as an entirety, described slump sounding rod is slidably connected by sounding rod sleeve 22 and gage beam 19, described slump sounding rod upper end is provided with measures pole cap 20, measures pole cap and can prevent the slump sounding rod from deviating from from described sounding rod sleeve.Described sounding rod sleeve is provided with sounding rod trip bolt 21, is convenient to test the slump.Described divergence dip stick is provided with divergence and measures rider 26, is convenient to test divergence.Gage beam 19 is sleeved on head tree 23 outside surface by gage beam sleeve 18, described gage beam sleeve upper/lower terminal is respectively equipped with the spacer pin limiting it and move up and down along head tree, this gage beam sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension.
The foregoing is only the schematic embodiment of the present invention, and be not used to limit scope of the present invention, any those skilled in the art, under the prerequisite not departing from design of the present invention and principle, can carry out multiple change, amendment, replacement and modification to above-described embodiment.Such as make slump cylinder pulling speed evenly, handle can be changed into handwheel or motor, additionally by size or the quantity on change main frame, chassis, or change the concrete structure of assembly, be slidably connected as the rolling on chassis in embodiment one is connected to change over, single head tree in embodiment two is made into the two head tree of length, or make divergence dip stick into accordion structure etc. and all can form a specific embodiment of the present invention, do not describe in detail one by one at this.
Claims (10)
1. a concrete flowability proving installation, comprise chassis, slump cylinder detent mechanism, slump cylinder and measuring mechanism, it is characterized in that: described chassis is made up of circular enlargement panel and annular ledge, for support slump cylinder and concrete mix sample, fixing slump cylinder detent mechanism; Described slump cylinder detent mechanism is made up of fixed frame, movable frame and handle, for fixing and lifting slump cylinder; The bearing shape structure that described slump cylinder detent mechanism is formed by fixed frame and chassis is connected, and slump cylinder detent mechanism is vertically to having stable structure, and level is to the rotation can carrying out 360 degree around chassis; Described movable frame and handle are slidably connected, and mention or depress handle to drive movable frame to move up and down along fixed frame; Described slump cylinder is made up of slump cylindrical shell, handle and dop, for holding concrete mix sample; Described slump cylinder is fixed on movable frame by handle and chuck, mentioning handle can make slump cylinder be fixed on the expansion face plate center on chassis to load mixture, pressure handle drives slump cylinder at the uniform velocity to promote by movable frame and concrete mix sample is evenly flowed out, forms the expansion that collapses or collapse; The dip stick that described measuring mechanism is formed by compressor arm and the load bar of slump cylinder detent mechanism forms, and completes the measurement to concrete mix slump and divergence; Described measuring mechanism comprises load bar and compressor arm, and load bar and compressor arm are marked with scale mark and form respectively slump dip stick and divergence dip stick; Move up and down relative to the main cross bar of fixed frame the slump can measuring concrete mix sample by load bar slump dip stick, the slump flow test of concrete mix sample can be measured by the rotation of compressor arm divergence dip stick around chassis.
2. concrete flowability proving installation according to claim 1, it is characterized in that: the expansion panel on described chassis is a plectane, the bottom surface edge of plectane is provided with annular ledge, described annular ledge lateral surface offers the inner ring that circular groove forms bearing shape structure, the annular rotary table madial wall of described fixed frame is also provided with the outer ring that circular groove forms bearing shape structure, the groove that described bearing and rotating disk are offered defines the raceway of bearing shape structure, in raceway, the several ball of Matching installation forms the rolling body of bearing shape structure, the retainer separated by ball is provided with in raceway, described rotating disk can rotate around bearing and form revolute pair, described expansion panel upper surface is provided with the divergence tag line of different-diameter, is provided with stiffening rib inside bearing.
3. concrete flowability proving installation according to claim 1, it is characterized in that: the fixed frame of described slump cylinder detent mechanism comprises main cross bar, left and right pole and rotating disk, pole upper end, left and right is separately fixed at the two ends of main cross bar, and lower end symmetry is fixed on the outside of round turntable; The movable frame of described slump cylinder detent mechanism comprises time cross bar, left and right elevating lever, chuck, compressor arm and left and right sleeve; Described chuck both sides are fixedly connected with compressor arm, and compressor arm opposite side is fixedly connected with sleeve, and sleeve set is peripheral left and right pole, and two sleeves form sliding pair with suit left and right pole within it respectively; Elevating lever lower end, described left and right is separately fixed at the upper surface of two compressor arms in left and right, upper end is fixed on the two ends of time cross bar, secondary cross bar central upper portion is fixedly connected with load bar, the slide-and-guide hole that load bar upper end is offered through main cross bar center is also connected in the middle part of handle, and described slide-and-guide hole and described load bar form sliding pair; Main cross bar upper surface one end of described fixed frame is provided with the ear that is fixedly hinged, described main cross bar by described hinged ear and handle one end hinged.
4. according to concrete flowability proving installation according to claim 1, it is characterized in that: described load bar upper end is provided with U-type groove, sliding tray is offered along its length in the middle part of described handle, can be sleeved in the U-type groove of load bar end in the middle part of the handle being provided with sliding tray, in the middle part of handle, sliding tray is connected by rotating shaft with the U-type groove of load bar upper end, and the sliding tray of described handle and described rotating shaft form sliding pair.
5. according to the concrete flowability proving installation described in claim 1 or 4, it is characterized in that: described load bar is provided with slump scale mark, load bar and movable frame define slump measuring mechanism, described compressor arm is respectively equipped with divergence scale mark and measures subscript with the divergence can slided on compressor arm, divergence scale mark, divergence measure subscript and two compressor arms form Control Measures for Concrete Slump divergence measuring mechanism.
6. the concrete flowability proving installation according to claim 1 or 4, it is characterized in that: described load bar side offers locking slot, columned load bar locking pin is equipped with by jacket casing in the side corresponding to load bar locking slot, upper end, slide-and-guide hole at main cross bar center, described load bar locking pin is slightly thick near the termination of load bar locking slot, spring is provided with between the sleeve of described termination and fixing load bar locking pin, the load bar locking bearing pin of sleeve opposite side is provided with and turns to dop and draw ring, described main cross bar is also provided with the dop turning to dop to match with locking pin, pull draw ring and make load bar locking pin two supporting dops can be made to unclamp along axle 90-degree rotation, by the locking slot of the termination of load bar locking pin press-in load bar under the tension force of spring, thus make load bar be fixed on main cross bar, the location to slump cylinder can be realized thus.
7. concrete flowability proving installation according to claim 1, is characterized in that: described slump cylinder detent mechanism is made up of handle, link, sliding tray, rotating shaft, load bar locking pin, load bar sleeve, load bar, slump cylinder locking pin, slump cylinder chuck, slump cylinder compressor arm, slump cylinder compressor arm sleeve, loading arm, loading arm sleeve, head tree, trip bolt and expansion board etc., described head tree lower end is vertically fixed on the edge, side of expansion board, described compressor arm is slidably connected by compressor arm sleeve and head tree, described compressor arm sleeve side is provided with compressor arm trip bolt, can described compressor arm be fixed on head tree, described compressor arm is fixedly connected with load bar with slump cylinder chuck respectively, described load bar is slidably connected by load bar sleeve and loading arm, described loading arm is slidably connected by loading arm sleeve and described head tree, described load bar upper end is slidably connected by rotating shaft and sliding tray and handle, described handle is slidably connected by link and described head tree, described link can carry out the rotation in horizontal 360-degree direction around described head tree column cap, upper and lower, described load bar side is provided with two locking slots, and the height of two locking slots corresponds respectively to locking pin and just can clamp slump cylinder and the position being totally released slump cylinder, described loading arm sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension, and rising or fall handle can fix slump cylindrical shell or throw off expansion board, realizes the test operation of charging and slump flow.
8. concrete flowability proving installation according to claim 7, is characterized in that: described chassis is made up of expansion board, and described expansion board is an entirety by head tree and slump cylinder detent mechanism consolidation.
9. the concrete flowability proving installation according to claim 1 or 7, is characterized in that: described measuring mechanism by gage beam sleeve, gage beam, measurement pole cap, sounding rod trip bolt, sounding rod sleeve, slump sounding rod, divergence measures rider and divergence dip stick is formed; Slump sounding rod and divergence dip stick are fixedly connected as an entirety, described slump sounding rod is slidably connected by sounding rod sleeve and gage beam, described slump sounding rod upper end is provided with measurement pole cap, measures pole cap and can prevent the slump sounding rod from deviating from from described sounding rod sleeve; Described sounding rod sleeve is provided with sounding rod trip bolt, is convenient to test the slump; Described divergence dip stick is provided with divergence and measures rider, is convenient to test divergence; Gage beam passes through gage beam sleeve set on head tree outside surface, described gage beam sleeve upper/lower terminal is respectively equipped with the spacer pin limiting it and move up and down along head tree, this gage beam sleeve can only do the rotation in horizontal 360-degree direction, can not do the motion of Vertical dimension.
10. concrete flowability proving installation according to claim 1, is characterized in that: the funnel-form feeding hopper that described slump cylinder comprises slump cylindrical shell and is communicated with slump cylinder lumen, and described feeding hopper is located at slump cylindrical shell place suitable for reading; Described slump cylinder body outer wall is fixed with two handles and chuck vertically arranged, two chucks are positioned at immediately below two handles, two handles and chuck symmetrical about slump cylinder body axis, described slump cylindrical shell is sleeved in chuck, and is fixed on compressor arm by chuck, handle and locking pin; Inside described chuck, symmetry offers two for the draw-in groove through handle.
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